What information is needed to calculate the speed of a falling object? A. Height that it was dropped from
B. All of these are needed to calculate the velocity
C. Volume of the object
D. Mass of the object

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.